Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test with our comprehensive quiz! Enhance your knowledge with multiple choice questions designed to simulate the actual DAT experience, complete with hints and detailed explanations. Ace your dental school application!

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Which of the following is a characteristic of a Lewis acid?

  1. Accepts a proton

  2. Donates an electron pair

  3. Accepts an electron pair

  4. Donates a proton

The correct answer is: Accepts an electron pair

A Lewis acid is a molecule or ion that is able to accept an electron pair. In contrast, a Lewis base is a molecule or ion that is able to donate an electron pair. Therefore, A and D are incorrect because they refer to the action of donating or accepting a proton, while B is incorrect because it refers to the action of donating an electron pair. The correct characteristic of a Lewis acid is the acceptance of an electron pair.

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